Sirjon, Sirjon, Diana Setyaningsih, Rr Retno Handasah, and Solicha Solicha. “Strategies to Improve Children’s Ability to Recognize Shapes through Geometry Games”. ETDC: Indonesian Journal of Research and Educational Review 4, no. 3 (June 2, 2025): 457–468. Accessed October 8, 2025. https://www.etdci.org/journal/ijrer/article/view/3012.